Quote:

... Ive been running Hughes rockers for 2 years, but they had to be clearanced extensively to fit the 1.6in springs.


FWIW, I think the guys on here running Indy 440-1 heads w/ T&D rockers had the same problem when using springs bigger than 1.55 OD". You might want to find out if T&D has made any changes to account for this, or you're liable to have to do exactly the same thing all over again.